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Apparatus and method for removing arsenic and inorganic compositions from water

a technology of arsenic and inorganic compositions, applied in the direction of water/sewage treatment by oxidation, disinfection, energy-based chemical/physical/physicochemical processes, etc., can solve problems such as health effects, and achieve the effect of suppressing the oxidizing ability of ozone and less discrimination

Inactive Publication Date: 2011-11-29
ZUCO WATER LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach achieves complete or nearly complete conversion of As III to As V, effectively purifying water and oxidizing other contaminants, including iron, manganese, sulfur, and organic matter, with enhanced stability and effectiveness compared to independent use of UV or ozone.

Problems solved by technology

Long term exposure is proven to result in health effects, such as cancer, cardiovascular disease, diabetes and reproductive problems.
Short term exposure to high doses of arsenic can cause other adverse health effects, but such effects are unlikely to occur from U.S. public water supplies that are in compliance with the arsenic standard.

Method used

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  • Apparatus and method for removing arsenic and inorganic compositions from water
  • Apparatus and method for removing arsenic and inorganic compositions from water
  • Apparatus and method for removing arsenic and inorganic compositions from water

Examples

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Embodiment Construction

Referring to FIG. 1, there is illustrated a water storage tank 10 having an inlet conduit 12 for supplying water into the tank under pressure. Top 14 of tank 10 is closed and a conduit 16 extends from the top into the tank to locate outlet 18 some distance from the top of the tank. This conduit serves in the manner of a vent. That is, as water enters the tank through inlet conduit 12, water level 20 will rise unimpeded until it reaches outlet 18. At that point, head space 22, defining an upper air section, is essentially at ambient pressure. The pressure of the water in lower water section 23 will increase to a pressure essentially equivalent that of the inflowing water, represented by arrow 24 and water level 20 will rise until the air pressure within the head space is essentially equivalent the water pressure in the lower water section. Outlet water conduit 25 provides a flow of water represented by arrow 26, on demand by operation of a valve downstream. As the water flows out of ...

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Abstract

Simultaneous application of ozone and ultraviolet light (UV185 and UV254) in water to be purified will create hydroxyl radicals, which combination will cause conversion of AS (III) that may be present to As (V), oxidation of inorganic matter such as manganese, sulfur, phosphorus and organic matter and provide virucidal and germicidal effects to purify the water.

Description

BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to the removal of arsenic, iron, phosphorus, sulfur, manganese and other dissolved minerals, whether naturally occurring or byproducts of commercial activities and, more particularly, to conversion of arsenic to arsenate and oxidation of other organic and inorganic matter.2. Description of Related Prior ArtArsenic occurs naturally in the environment as a heavy metal in two different forms, arsenite [As (III)] and arsenate [As (V)]. Arsenic is released into water supplies from erosion of rocks and soil. The distribution of arsenic in soil, ground water and surface water has extensively been investigated during the past two decades.Long term exposure is proven to result in health effects, such as cancer, cardiovascular disease, diabetes and reproductive problems. Nationally, about three thousand or 5.5% of the nation's 54,000 community water systems and 1,100 (or 5.5%) of the twenty thousand non-transien...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C02F1/32
CPCC02F2101/103C02F2201/3221C02F1/325C02F1/722C02F2101/20C02F1/78
Inventor DENKEWICZ, JR., RAYMOND P.ENGELHARD, ROLF
Owner ZUCO WATER LLC
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